Tweco 1160-1111 Mig Contact Tip 0.109 in 1.5 in 600A

Product Description

The TWECO 1160-1111 is a 16 Series Standard Heavy Duty contact tip designed for MIG welding guns operating up to 600 amps. Machined from 122 DHP copper alloy tubing, it accommodates 7/64-inch (0.109-inch) wire with a nominal inside diameter of 0.12 inches and an outside diameter of 0.375 inches. The tip measures 1.5 inches in length and uses an M8 x 1.25-6g thread. Inside diameter tolerance is held to plus or minus 0.003 inches, ensuring consistent wire feed and arc stability. Licensed HVAC, welding, and fabrication technicians install this consumable as part of routine MIG gun maintenance on heavy industrial equipment.

This contact tip is rated for use with Tweco Spray Master and Tweco No.6 MIG guns operating in the 350 to 600 amp range, as well as compatible MIG gun series that accept the 16 Series standard tip profile. It is suited for heavy-duty welding applications in industrial, manufacturing, and fabrication environments where high-amperage, high-duty-cycle operation demands a robust, thermally stable consumable. The tip is sold in a pack of 25, making it practical for shop stock and fleet maintenance programs.

Key Features

• Rated up to 600 amps for heavy-duty MIG welding applications
• Machined from extruded or gun-drilled 122 DHP copper alloy for consistent inside diameter surface finish
• Inside diameter tolerance held to plus or minus 0.003 inches for reliable wire feed
• Twist-lock design seats securely against the gas diffuser without thread engagement concerns
• Quarter-turn clockwise rotation exposes a new wear point, effectively doubling tip service life
• Thick-walled construction acts as a heat sink, conducting heat away from the arc source
• Each tip is marked with part number and wire diameter for fast identification in the field

Compatibility

Compatible with Tweco Spray Master and Tweco No.6 MIG guns rated for 350 to 600 amps, as well as specific MIG gun series that accept the 16 Series standard heavy-duty contact tip format.

Installation Notes

Contact tips are installed and replaced by welding technicians during routine MIG gun consumable service. Power down and disconnect the welding machine before replacing the contact tip. Use appropriate insulated pliers or a contact tip removal tool to avoid burning or stripping the tip seat. Follow the gun manufacturer's service guidelines and applicable workplace safety codes when servicing live welding equipment.

Technical Specifications

• Wire Diameter: 0.109 inches (7/64 inch)
• Nominal Inside Diameter (Bore): 0.12 inches
• Outside Diameter: 0.375 inches
• Inside Diameter Tolerance: plus or minus 0.003 inches
• Length: 1.5 inches
• Thread Size: M8 x 1.25-6g
• Current Rating: up to 600 amps
• Material: 122 DHP copper alloy
• Weight: 0.04 pounds
• Sold As: 25 per pack

Standard Information

• Brand: TWECO
• Manufacturer Part Number: 1160-1111